{"id":2439,"date":"2026-01-22T10:39:08","date_gmt":"2026-01-22T09:39:08","guid":{"rendered":"https:\/\/www.nickelcasting.com\/?p=2439"},"modified":"2026-01-30T03:01:28","modified_gmt":"2026-01-30T02:01:28","slug":"nimonic-75-gegenuber-nimonic-80a","status":"publish","type":"post","link":"https:\/\/www.nickelcasting.com\/de\/nimonic-75-gegenuber-nimonic-80a\/","title":{"rendered":"Nimonic 75 gegen\u00fcber Nimonic 80A"},"content":{"rendered":"<p>Im Bereich der Superlegierungen auf Nickelbasis stellt die Nimonic-Serie einen Eckpfeiler der Hochtemperatur-Werkstofftechnik dar. Zu den am h\u00e4ufigsten verglichenen Sorten geh\u00f6ren Nimonic 75 (UNS N06075) und Nimonic 80A (UNS N07080). Obwohl beide Legierungen eine Nickel-Chrom-Basis haben, die f\u00fcr extreme Umgebungen ausgelegt ist, unterscheiden sich ihre metallurgischen Strukturen und Leistungsbereiche aufgrund ihrer Verfestigungsmechanismen erheblich. Dieser Artikel bietet einen technischen Einblick in die Unterschiede, um Ingenieuren und Beschaffungsspezialisten bei der Entscheidungsfindung zu helfen.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-full wp-image-2440\" src=\"http:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/68.jpg\" alt=\"\" width=\"1200\" height=\"746\" srcset=\"https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/68.jpg 1200w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/68-300x187.jpg 300w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/68-1024x637.jpg 1024w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/68-768x477.jpg 768w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/68-18x12.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<h2 data-path-to-node=\"3\">Vergleich zwischen Nimonic 75 und 80A<\/h2>\n<p data-path-to-node=\"4\">Der grundlegende Unterschied zwischen Nimonic 75 und Nimonic 80A liegt in der chemischen Zusammensetzung und dem daraus resultierenden Verfestigungsverfahren.<\/p>\n<ul data-path-to-node=\"5\">\n<li>\n<p data-path-to-node=\"5,0,0\">Nimonic 75 ist eine mischkristallverfestigte Legierung. Es handelt sich im Wesentlichen um eine 80\/20-Nickel-Chrom-Matrix mit kontrollierten Zus\u00e4tzen von Titan und Kohlenstoff. Sie wird in erster Linie wegen ihrer hervorragenden Oxidationsbest\u00e4ndigkeit und Verarbeitbarkeit und weniger wegen ihrer hohen mechanischen Festigkeit gesch\u00e4tzt.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"5,1,0\">Nimonic 80A ist eine ausscheidungsh\u00e4rtbare (aush\u00e4rtbare) Legierung. Durch die Erh\u00f6hung des Aluminium- und Titananteils bildet sie eine Gamma Prime (<span aria-hidden=\"true\">\u03b3\u2032<\/span>) intermetallische Phase (<span aria-hidden=\"true\">Ni3(Al,Ti)<\/span>) w\u00e4hrend der W\u00e4rmebehandlung. Diese Phase wirkt als Barriere f\u00fcr Versetzungsbewegungen und erh\u00f6ht die Kriech- und Erm\u00fcdungsbest\u00e4ndigkeit erheblich.<\/p>\n<\/li>\n<\/ul>\n<p><strong>Tabelle 1: Vergleich der chemischen Zusammensetzung (typisch %)<\/strong><\/p>\n<table data-path-to-node=\"7\">\n<thead>\n<tr>\n<td><strong>Element<\/strong><\/td>\n<td><strong>Nimonic 75 (Legierung 75)<\/strong><\/td>\n<td><strong>Nimonic 80A (Legierung 80A)<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span data-path-to-node=\"7,1,0,0\"><b data-path-to-node=\"7,1,0,0\" data-index-in-node=\"0\">Nickel (Ni)<\/b><\/span><\/td>\n<td><span data-path-to-node=\"7,1,1,0\">Bilanz<\/span><\/td>\n<td><span data-path-to-node=\"7,1,2,0\">Bilanz<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"7,2,0,0\"><b data-path-to-node=\"7,2,0,0\" data-index-in-node=\"0\">Chrom (Cr)<\/b><\/span><\/td>\n<td><span data-path-to-node=\"7,2,1,0\">18.0 - 21.0<\/span><\/td>\n<td><span data-path-to-node=\"7,2,2,0\">18.0 - 21.0<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"7,3,0,0\"><b data-path-to-node=\"7,3,0,0\" data-index-in-node=\"0\">Titan (Ti)<\/b><\/span><\/td>\n<td><span data-path-to-node=\"7,3,1,0\">0.2 - 0.6<\/span><\/td>\n<td><span data-path-to-node=\"7,3,2,0\">1.8 - 2.7<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"7,4,0,0\"><b data-path-to-node=\"7,4,0,0\" data-index-in-node=\"0\">Aluminium (Al)<\/b><\/span><\/td>\n<td><span data-path-to-node=\"7,4,1,0\">&#8211;<\/span><\/td>\n<td><span data-path-to-node=\"7,4,2,0\">1.0 - 1.8<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"7,5,0,0\"><b data-path-to-node=\"7,5,0,0\" data-index-in-node=\"0\">Eisen (Fe)<\/b><\/span><\/td>\n<td><span data-path-to-node=\"7,5,1,0\">5,0 max<\/span><\/td>\n<td><span data-path-to-node=\"7,5,2,0\">3,0 max<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"7,6,0,0\"><b data-path-to-node=\"7,6,0,0\" data-index-in-node=\"0\">Kohlenstoff (C)<\/b><\/span><\/td>\n<td><span data-path-to-node=\"7,6,1,0\">0.08 - 0.15<\/span><\/td>\n<td><span data-path-to-node=\"7,6,2,0\">0,10 max<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Tabelle 2: Mechanische Eigenschaften bei Raumtemperatur<\/strong><\/p>\n<table data-path-to-node=\"9\">\n<thead>\n<tr>\n<td><strong>Eigentum<\/strong><\/td>\n<td><strong>Nimonic 75 (gegl\u00fcht)<\/strong><\/td>\n<td><strong>Nimonic 80A (Alterungsgeh\u00e4rtet)<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span data-path-to-node=\"9,1,0,0\"><b data-path-to-node=\"9,1,0,0\" data-index-in-node=\"0\">Zugfestigkeit (MPa)<\/b><\/span><\/td>\n<td><span data-path-to-node=\"9,1,1,0\">~750<\/span><\/td>\n<td><span data-path-to-node=\"9,1,2,0\">~930 - 1000<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"9,2,0,0\"><b data-path-to-node=\"9,2,0,0\" data-index-in-node=\"0\">0.2% Streckgrenze (MPa)<\/b><\/span><\/td>\n<td><span data-path-to-node=\"9,2,1,0\">~300<\/span><\/td>\n<td><span data-path-to-node=\"9,2,2,0\">~600 - 700<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"9,3,0,0\"><b data-path-to-node=\"9,3,0,0\" data-index-in-node=\"0\">Dehnung (%)<\/b><\/span><\/td>\n<td><span data-path-to-node=\"9,3,1,0\">35 - 45<\/span><\/td>\n<td><span data-path-to-node=\"9,3,2,0\">20 - 30<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"9,4,0,0\"><b data-path-to-node=\"9,4,0,0\" data-index-in-node=\"0\">H\u00e4rte (HB)<\/b><\/span><\/td>\n<td><span data-path-to-node=\"9,4,1,0\">150 - 200<\/span><\/td>\n<td><span data-path-to-node=\"9,4,2,0\">250 - 300<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 data-path-to-node=\"11\">Nimonic 75 vs. 80A: Wie w\u00e4hlt man?<\/h2>\n<p data-path-to-node=\"12\">Die Wahl zwischen diesen beiden Legierungen h\u00e4ngt von der prim\u00e4ren Ausfallart der Anwendung ab: Mechanische Belastung oder Oxidation durch Umwelteinfl\u00fcsse.<\/p>\n<h3 data-path-to-node=\"13\">1. Temperatur vs. Last<\/h3>\n<p data-path-to-node=\"14\">Wenn Ihre Anwendung Temperaturen von bis zu <span aria-hidden=\"true\">1000\u2218C<\/span> aber relativ geringe mechanische Beanspruchung erfordert (z. B. Ofenkomponenten), ist Nimonic 75 die beste Wahl. Seine einfachere Chemie macht es stabiler gegen Oxidation und Verzunderung in verschiedenen industriellen Atmosph\u00e4ren.<\/p>\n<p data-path-to-node=\"15\">Umgekehrt gilt f\u00fcr Anwendungen, bei denen das Material einer Verformung unter hoher Belastung bei Temperaturen von bis zu <span aria-hidden=\"true\">815\u2218C<\/span>, ist Nimonic 80A unverzichtbar. Seine hohe Zeitstandfestigkeit sorgt f\u00fcr Formstabilit\u00e4t bei l\u00e4ngerer thermischer und mechanischer Belastung.<\/p>\n<h3 data-path-to-node=\"16\">2. Verarbeitbarkeit und Schwei\u00dfen<\/h3>\n<p data-path-to-node=\"17\">Nimonic 75 ist bekannt f\u00fcr seine hervorragende Schwei\u00dfbarkeit und leichte Kaltverformbarkeit. Es kann mit den meisten Standard-Schmelzschwei\u00dftechniken (WIG\/MIG) ohne nennenswertes Risiko von Rissen verbunden werden.<\/p>\n<p data-path-to-node=\"18\">Nimonic 80A, eine ausscheidungsgeh\u00e4rtete Legierung, ist empfindlicher. Sie erfordert eine pr\u00e4zise L\u00f6sungsgl\u00fchung vor dem Schwei\u00dfen und eine W\u00e4rmebehandlung nach dem Schwei\u00dfen (PWHT), um Dehnungsrissbildung zu verhindern. Wenn komplexe Verarbeitungen oder Blecharbeiten erforderlich sind, ist Alloy 75 wesentlich benutzerfreundlicher.<\/p>\n<h3 data-path-to-node=\"19\">3. Kosteneffizienz<\/h3>\n<p data-path-to-node=\"20\">Aufgrund des Fehlens von Aluminium und des geringeren Titangehalts ist Nimonic 75 im Allgemeinen kosteng\u00fcnstiger. Verwenden Sie es, wenn die mechanischen Anforderungen des Projekts nicht unbedingt die Hochtemperaturfestigkeit von 80A erfordern.<\/p>\n<h2 data-path-to-node=\"22\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-2441\" src=\"http:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/69.jpg\" alt=\"\" width=\"1200\" height=\"1200\" srcset=\"https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/69.jpg 1200w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/69-300x300.jpg 300w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/69-1024x1024.jpg 1024w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/69-150x150.jpg 150w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/69-768x768.jpg 768w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/69-12x12.jpg 12w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/h2>\n<h2 data-path-to-node=\"22\">Verwendung von Turbinenschaufeln aus Nimonic 75 und 80A<\/h2>\n<p data-path-to-node=\"23\">Die Geschichte der Gasturbinentechnik ist im Wesentlichen die Geschichte der Nimonic-Serie. In den fr\u00fchen D\u00fcsentriebwerken (wie dem Whittle-Triebwerk) war Nimonic 75 der urspr\u00fcngliche Werkstoff f\u00fcr Turbinenschaufeln. Als jedoch die Temperaturen und Drehzahlen der Triebwerke stiegen, erreichte Alloy 75 seine mechanischen Grenzen.<\/p>\n<h3 data-path-to-node=\"24\">Die Umstellung auf Nimonic 80A<\/h3>\n<p data-path-to-node=\"25\">Die Konstruktion moderner Turbinenschaufeln erfordert Werkstoffe, die den Zentrifugalkr\u00e4ften der Hochgeschwindigkeitsrotation standhalten k\u00f6nnen. Nimonic 80A wurde der Industriestandard f\u00fcr:<\/p>\n<ul data-path-to-node=\"26\">\n<li>\n<p data-path-to-node=\"26,0,0\">Hochdruck-Turbinenschaufeln: Wo die Kriechfestigkeit der entscheidende Faktor ist.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"26,1,0\">Auslassventile: Bei Hochleistungs-Verbrennungsmotoren (insbesondere im Motorsport).<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"26,2,0\">Turbinenscheiben und Ringe: Erfordern eine hohe Erm\u00fcdungslebensdauer.<\/p>\n<\/li>\n<\/ul>\n<p data-path-to-node=\"27\">While Nimonic 75 has largely been phased out of rotating blade applications, it remains a &#8220;workhorse&#8221; for static components in the turbine section. It is extensively used for combustion chamber liners, exhaust ducting, and flame tubes, where its ability to resist oxidation and thermal cycling is more valuable than its creep strength.<\/p>\n<hr data-path-to-node=\"28\" \/>\n<h3 data-path-to-node=\"29\">Verwandte Fragen und Antworten<\/h3>\n<p data-path-to-node=\"30\">F1: Wie hoch ist die maximale Einsatztemperatur f\u00fcr Nimonic 80A? F\u00fcr hochbelastete Anwendungen wie Turbinenschaufeln ist Nimonic 80A in der Regel begrenzt auf <span aria-hidden=\"true\">815\u2218C<\/span> (<span aria-hidden=\"true\">1500\u2218F<\/span>). Dar\u00fcber hinaus ist die <span aria-hidden=\"true\">\u03b3\u2032<\/span> Die Ausscheidungen beginnen zu vergr\u00f6bern, was zu einem Verlust der mechanischen Festigkeit f\u00fchrt.<\/p>\n<p data-path-to-node=\"31\">F2: Kann Nimonic 75 durch W\u00e4rmebehandlung geh\u00e4rtet werden? Nein, Nimonic 75 ist eine Mischkristalllegierung und kann durch W\u00e4rmebehandlung nicht wesentlich geh\u00e4rtet werden. Es kann jedoch bei Bedarf durch Kaltumformung (Kaltverfestigung) verfestigt werden.<\/p>\n<p data-path-to-node=\"32\">F3: Welche Legierung ist besser f\u00fcr die Best\u00e4ndigkeit gegen schwefelhaltige Atmosph\u00e4ren geeignet? Beide Legierungen bieten aufgrund ihres hohen Chromgehalts eine gute Best\u00e4ndigkeit. Nimonic 75 wird jedoch h\u00e4ufig in Industrie\u00f6fen bevorzugt, da seine Oberfl\u00e4chenoxidschicht (Chromoxid) au\u00dfergew\u00f6hnlich stabil ist und bei Temperaturwechseln weniger zu Abplatzungen neigt.<\/p>","protected":false},"excerpt":{"rendered":"<p>In the realm of nickel-based superalloys, the Nimonic series represents a cornerstone of high-temperature material engineering. Among the most frequently compared grades are Nimonic 75 (UNS N06075) and Nimonic 80A (UNS N07080). While both alloys share a nickel-chromium base designed for extreme environments, their metallurgical structures and performance envelopes differ significantly due to their strengthening 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[3],"tags":[],"class_list":["post-2439","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"spectra_custom_meta":{"_edit_lock":["1769738346:1"],"_edit_last":["1"],"rank_math_internal_links_processed":["1"],"rank_math_seo_score":["59"],"rank_math_description":["A technical comparison of Nimonic 75 and 80A superalloys, exploring chemical differences, creep strength, and their roles in gas turbine blades."],"rank_math_focus_keyword":["nimonic 75 vs nimonic 80a"],"_thumbnail_id":["2440"],"_wp_page_template":["default"],"site-sidebar-layout":["default"],"ast-site-content-layout":["default"],"site-content-style":["default"],"site-sidebar-style":["default"],"theme-transparent-header-meta":["default"],"ilj_blacklistdefinition":["a:0:{}"],"ilj_linkdefinition":["a:1:{i:0;s:25:\"Nimonic 75 vs Nimonic 80A\";}"],"astra-migrate-meta-layouts":["set"],"_uag_page_assets":["a:9:{s:3:\"css\";s:263:\".uag-blocks-common-selector{z-index:var(--z-index-desktop) !important}@media (max-width: 976px){.uag-blocks-common-selector{z-index:var(--z-index-tablet) !important}}@media (max-width: 767px){.uag-blocks-common-selector{z-index:var(--z-index-mobile) !important}}\n\";s:2:\"js\";s:0:\"\";s:18:\"current_block_list\";a:8:{i:0;s:11:\"core\/search\";i:1;s:10:\"core\/group\";i:2;s:12:\"core\/heading\";i:3;s:17:\"core\/latest-posts\";i:4;s:20:\"core\/latest-comments\";i:5;s:13:\"core\/archives\";i:6;s:15:\"core\/categories\";i:7;s:10:\"core\/image\";}s:8:\"uag_flag\";b:0;s:11:\"uag_version\";s:10:\"1776935854\";s:6:\"gfonts\";a:0:{}s:10:\"gfonts_url\";s:0:\"\";s:12:\"gfonts_files\";a:0:{}s:14:\"uag_faq_layout\";b:0;}"],"_elementor_page_assets":["a:0:{}"],"_uag_css_file_name":["uag-css-2439.css"]},"uagb_featured_image_src":{"full":["https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/68.jpg",1200,746,false],"thumbnail":["https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/68-150x150.jpg",150,150,true],"medium":["https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/68-300x187.jpg",300,187,true],"medium_large":["https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/68-768x477.jpg",768,477,true],"large":["https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/68-1024x637.jpg",1024,637,true],"1536x1536":["https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/68.jpg",1200,746,false],"2048x2048":["https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/68.jpg",1200,746,false],"trp-custom-language-flag":["https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/68-18x12.jpg",18,12,true]},"uagb_author_info":{"display_name":"nickel","author_link":"https:\/\/www.nickelcasting.com\/de\/author\/nickel\/"},"uagb_comment_info":0,"uagb_excerpt":"In the realm of nickel-based superalloys, the Nimonic series represents a cornerstone of high-temperature material engineering. Among the most frequently compared grades are Nimonic 75 (UNS N06075) and Nimonic 80A (UNS N07080). While both alloys share a nickel-chromium base designed for extreme environments, their metallurgical structures and performance envelopes differ significantly due to their strengthening&hellip;","_links":{"self":[{"href":"https:\/\/www.nickelcasting.com\/de\/wp-json\/wp\/v2\/posts\/2439","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nickelcasting.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nickelcasting.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nickelcasting.com\/de\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nickelcasting.com\/de\/wp-json\/wp\/v2\/comments?post=2439"}],"version-history":[{"count":2,"href":"https:\/\/www.nickelcasting.com\/de\/wp-json\/wp\/v2\/posts\/2439\/revisions"}],"predecessor-version":[{"id":2443,"href":"https:\/\/www.nickelcasting.com\/de\/wp-json\/wp\/v2\/posts\/2439\/revisions\/2443"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nickelcasting.com\/de\/wp-json\/wp\/v2\/media\/2440"}],"wp:attachment":[{"href":"https:\/\/www.nickelcasting.com\/de\/wp-json\/wp\/v2\/media?parent=2439"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nickelcasting.com\/de\/wp-json\/wp\/v2\/categories?post=2439"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nickelcasting.com\/de\/wp-json\/wp\/v2\/tags?post=2439"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}